what is eka boron
and triads
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Your spelling is wrong plz correct it so that I can answer
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Eka-boron was the name given by Mendeleev to the predicted element (scandium) lying below boron in the periodic table. Silicon is an element with the symbol Si and atomic number 14. It is a tough , brittle crystalline solid with a blue-grey metallic lustre, and is tetravalent.
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